Auxiliary air device for internal-combustion engines.



EI F. I'IAIVKII\ISl AUXILIARY AIR DEVICE FOR INTERNAL COMBUSTION ENGINES.

PPLICATION FILED FEB. l, I98.

erica.

HARRY E. F. HAWKINS, OF VINELAND, NEW JERSEY.

AUXILIARY .AIR DEVICE VFOR INTERNAL-COMBUSTION ENGINES.

I To all whom it may concern.'

Be it known that I, HARRY E.F..HAW1`1Ns,

a citizen of the United States,- residing at Vineland, in the county of Cumberland and State of New Jersey, have invented certain new and useful Improvements in Auxiliary Air Devices for Internal-Combustion Engines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention has for its object the pro- 1 vision of a simple and inexpensive, yet a highly efficient device for supplying an auxiliary quantity of air to the intake 'manifolds of internal combustion engines, between the carbureter and the intake valves, to reduce fuel consumption and to prevent the formation of carbon deposits in the enginecylinders to a large extent7 by supplying suiicient oxygen t0 the fuel to insure perfect combustion.

TvVith theforegoing general object in View, the invention resides in the novel features of construction and unique combinations of parts to be hereinafter fully described and claimed, the descriptive matter being supplemented .by the accompanying drawings which form a part of this specification and in which:

Figure 1 is a side elevation of an automobile engine equipped with the invention;

Fig.l `2 is an enlarged side elevation of the present device showing its manner of attachment to the manifld;

Fig. 3 is a longitudinal section of the invention; and

Figs. 7l and 5 are vertical transverse sections on the planes f the lines 4-4 and 5-5 respectivelyv of Fig. 2.

In the drawing above briefly described,

the numeral 1 designates a cylindrical casing whose wall 1s formed by overlapping anspecification of Letters Patent. .Patented July 16A-918.

Application iiled February 7, 191B. Serial No. 215,807.

total or partial registration to control the amount of air passing into the casing 1, and by reference to Fig. 2 it will be obvious that the polnted end of the opening 7 is exposed gradually for registration with the other opening, so that the entrance of air may be very accurately controlled.

Secured to the outer end 4 of the casing is an arm 9, the inner end of said arm having a rectangular opening receiving a central boss 10 on said end 4, a screw 11 being provided for holding said arm in engagement with the boss, so that swinging of said arm by means of an operating r'od 0r the like 12, will control the registration of the openings 7 and 8 by turning the inner flange 2 within the outer. Rod 12 is pivoted at 13 to the arm 9 'and said rod extends through the dash 14 of the machine and through an opening in a plate 15 secured to said dash, the lower side of said rod having teeth 16 for engagement with a detent 17 for holding the arm 9 in adjusted position against the tension of a spring 18 which tends normally to move said arm so as to open the valve. The rear end of rod 12 is provided with a knob or the like 19 and by raising this rod to disengage the teeth 16 from the detent 17 the device may be adjusted to admit more or less air, according to atmospheric conditions.

.A tubular stem 20 passes through a central opening 21 in the casing end 4 and at 22 is threaded into the casing endl 3 around the nipple 5 and in communication With the outlet opening of the latter. The outer endv of the stem 2O is closed and is provided with a nut or other suitable stop 23 abutting the boss 10 to prevent relative outward movement of the two casing ends, said nut being secured against movement by a pin 24 orl other appropriate means. A second nut 25 is secured by a pin 26 on the outer end of the stem 20 and one end of said spring is secured to said nut as shown clearly in Fig. 3. Within the casing 1, the stem 2() is perfor-'ated as shown at' 27 and this portion of V the stem acts as a passage to conduct air` from lthe casing into the manifold and tochoke `down such air to prevent 1t from rushing directly into the manifold from the openings 7 and 8. Without this air retarding means, the device was found to be totally impractical since the air was not-prop-A erly delivered to the manifold to insure thorough mixing with the fuel passing I therethrough.

The invention is applied substantially shown in Fig. l and in order to adapt it for cars of different sizes and makes, the operating rod 12 may Well be provided with a turnbuckle 28. lVlien properlyv installed,

the device will e-i'ect a great saving in fuel and will reduce `carbon deposits to theminimum by insurng the admission of sulicient oxygen to give'perfect combustion in the engine cylinders, On rather warm days, the valve may be opened to thelimit by proper movement of the rod, but oncolder days, the

fuel will not stand as great a quantity of air,

so it is. then necessary to partially or totally close the device. Since thecontrol is located on the dash however, it Vis a simple ,matter to obtain the proper adjustmentv according to atmospheric conditions and to the temperature of the engine;. A pair of stops 30 may be employed for preventing.

excessive movement of the valve.

From the foregoing, taken in connection With the accompanying drawing, it Will be lobvious that although my invention is of extremely simple and inexpensivenature, it will be highly eficient for the purposes intended. Since probably the best results are obtained from the specific details shown 4 and described, these details are byv prefen ence employed, but Within the scope of the invention as claimed,` numerous minor changes may Well be made.

I claim: An auxiliary air inlet device for internal combustion engines comprising a cylindrical casing whose wall is formed by two telescoping annular langes formed on vend members of said casing, said flanges havingair 'inlet openings for total or artial registration, one end member of sai' casing having a central air outlet nipple and the other end member having a central opening, means connected to said last named end member for turning it and its flange With respect to the other end member and flange, a tubular stein passing through said cent-ral opening and secured to the opposite end HARRY E. F. IILlAVVKINS.

Witnesses: y A

JOSEPH H. POWELL,

CLARA E. C. VEALE. 

